"Guerrero returns to affiliated ball after spending the 2025 season in Japan. The hulking 6'8″ righty signed with the Chiba Lotte Marines last offseason. It was his second stint with the club, as Guerrero also pitched for the Marines back in 2022. His first stint went better than last year's, as he allowed a 6.41 ERA over 19 2/3 NPB innings. He spent the majority of the season with their minor league affiliate as a result."
"The 35-year-old Guerrero last pitched in the majors in 2019. He has 106 innings of MLB experience, turning in a 5.77 earned run average. Guerrero has allowed an even seven earned runs per nine over 117 career Triple-A frames. Various teams have been intrigued enough to continue giving him looks as a depth reliever on the strength of his velocity. Guerrero averages 99 MPH on his fastball but has never had great feel for command."
Boston signed 35-year-old reliever Tayron Guerrero to a minor-league contract with an invite to major-league camp. Guerrero returns to affiliated baseball after the 2025 season in Japan, where the 6'8″ right-hander rejoined the Chiba Lotte Marines but spent most of the year with their minor-league affiliate and posted a 6.41 ERA in 19 2/3 NPB innings. Guerrero last pitched in MLB in 2019, has 106 major-league innings with a 5.77 ERA, and a Triple-A career rate of seven earned runs per nine over 117 frames. Teams prize his 99 MPH fastball despite command concerns. Boston will evaluate him in camp and at Triple-A Worcester; he is unlikely to make Opening Day but could earn a midseason call.
Read at MLB Trade Rumors
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